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Höwenegg Quarry (Hewenegg Quarry), Immendingen, Hegau, Baden-Württemberg, Germany

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Name(s) in local language(s): Steinbruch Höwenegg (Steinbruch Hewenegg), Immendingen, Hegau, Baden-Württemberg, Deutschland
 
A quarry in a Lower Tertiary nepheline-basalt, which was abandoned in 1979 and forms part of a protected area since 1983. Höwenegg mountain, where the quarry is situated, is also a very important locality for Tertiary fossil mammals. Collecting here is strictly prohibited.
Located about 3 km south of Immendingen.

This quarry is the type locality of Amicite, which was discovered by Otto Krumm in thin veins of the Melilite-Nephelinite-rock and provided for resarch. The first description was made by Alberti, Hentschel & Vezzalini in 1979 (see reference). Amicite is associated with Merlinoite, Calcite and Aragonite.

Mineral List



36 entries listed. 26 valid minerals. 1 (TL) - type locality of valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

- Der Aufschluss 1981(4), 130-134
- Tschernich, R. (1992), Zeolites of the World, p.42
- Alberti A., Hentschel G. and VezzaliniG. (1979) Amicite, a new natural zeolite - N.Jb.Miner. Mh., Jg. 1979, H.11, 481-488

Mineral and/or Locality  
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